I'm a "semi-scalper", mostly, so my drawdowns happen to be minimal, but if I had a drawdown of 4%, I'd instinctively be wanting to decrease my position-size, not to increase it. Otherwise you're "chasing", aren't you? Increasing your stakes during a losing run is an eventual way to the poor-house. In my opinion.
Hi there Xela - perhaps I need to clarify.... if you conduct a runs test for randomness on your trades you will find out if they are random or not. My returns are close to randomly distributed so I have to expect the same odds of winning each time I trade. Therefore I trade a fixed percentage of equity every time. HOWEVER, I do run some more aggressive accounts where I use the historical drawdowns to plan upping the size, and I have enough trading observations to make that call based on how my systems trades etc. I use a portfolio of low-correlated systems in making this judgement call only on my most aggressive accounts. Regards and thx for your comments.
well not a bad place to start.... a few market swings and interest rate cycles included since then. Nice low vol stretch from 04 to 06. Do a runs test on your system data... helped alot in my planning. Regards